JPH0684080A - Alarm device - Google Patents

Abstract

PURPOSE:To provide an alarm device capable of counting up the number of alarms together with the display of plural alarm signals, and even when many alarms are generated within a short time and displayed on an alarm display device, clearly informing the generation order of alarms to an operator. CONSTITUTION:The alarm device consists of an alarm control device 6 provided with an overall counter display device 10 for inputting plural alarm signals (1a to 1n), outputting alarm display signals (3a to 3n) and counting up and displaying the alarm signals (1a to 1n) and a monitor and control equipment 7 provided with an alarm display device 8 having plural counter display devices 8a to 8n for inputting the alarm display signals (3a to 3n) and a count signal 11 and executing displays corresponding to the count signal 11 so as to execute alarm displays corresponding to respective alarm display signals (3a to 3n). The alarm device is also provided with a computer for inputting the count signals outputted from the device 6 and alarm information signals such as the count display signals and the alarm display signals outputted from the equipment 7 and outputting alarm information 26 obtained by working these input signals and a display means for displaying the alarm information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm device for displaying and monitoring various plant alarms in various plants.

[0002]

2. Description of the Related Art A conventional alarm device for displaying various alarms in a plant has alarm signals 1a, 1b, ... Generated from many field devices in the plant, as shown in the alarm system configuration diagram of FIG. 1n is input to the alarm control device 2 installed in the control room, processed into alarm display signals 3a, 3b, ... 3n for displaying an alarm in the control room, and output.

The alarm display signals 3a, 3b, ... 3n are
5n corresponding to each of the alarm display signals 3a, 3b, ... 3n arranged in the monitoring control device 4 installed in the control room is displayed by being input, and the operator is informed. It Further, the alarm signals 1a, 1b, ... 1n are input to a process computer (not shown) which separately captures information in the plant, processed, and displayed on the CRT as necessary.

The alarm indicators 5a, 5b, ... 5n
Indicate the names of alarms on the display windows of the indicator lights, respectively. For example, in a large-scale plant of 1.1 million kW class boiling water nuclear power plant, about 1,500 points are usually installed.

[0005]

In a 1.1 million kW class boiling water nuclear power plant, hundreds of alarm indicators 5a, 5b, ... 5n are displayed when a plant abnormality such as an emergency reactor shutdown occurs.
Is supposed to light up, but the conventional monitoring and control device 4
In the alarm device with the alarm indicators 5a, 5b, ... 5n installed in, only the alarm names of the display windows of the alarm indicators 5a, 5b, ... When the alarm indicators 5a, 5b, ... 5n are turned on, the order of occurrence of the alarms is unclear, and a great deal of effort is required for investigating the abnormality of the plant based on the information from the alarm indicators 5a, 5b ,. Was needed.

Further, in the alarm display system at the time of plant abnormality using the process computer, rough processing concerning the alarm generation order is possible, but when a large number of alarms occur in a short time, the computer outputs an alarm signal. It was difficult to grasp the exact occurrence order by the cycle time of taking in.

An object of the present invention is to display a plurality of alarm signals and to count the number of alarm signals so that even if a large number of alarms are generated in a short time and the window of the alarm indicator lights up, An object of the present invention is to provide an alarm device that can clearly notify the operator of the order of occurrence.

[0008]

An alarm control device provided with an all counter indicator for inputting a plurality of alarm signals to perform alarm display processing and outputting an alarm display signal, and for counting and displaying the alarm signals. , A plurality of alarm displays for providing an alarm display corresponding to each alarm display signal by providing a counter display for inputting a plurality of alarm display signals and a count signal output from the alarm control device and performing a display corresponding to the count signal And a monitor and control device provided with a container.

The alarm control device and the monitoring control device are provided, and a count signal from the alarm control device and an alarm information signal such as a count display signal and an alarm display signal from the monitoring control device are input. It is characterized in that it comprises a computer for outputting the alarm information processed by the above, and a display means for displaying this alarm information.

[0010]

The plurality of alarm signals are processed into an alarm display signal in the alarm control device and output to the monitoring control device together with the alarm generation count signal. Further, the count signal is counted and displayed on all counter displays. In the monitoring control device, the alarm display signal is displayed as an alarm on the alarm display equipped with the counter display corresponding to each alarm display signal,
The generation order of the alarm display signal is counted and displayed on the counter display.

Further, a count signal from the alarm control device,
The computer that receives the alarm display signal from the monitoring and control device and the alarm display signal based on the count display signal, for example, processes the alarm name (content) of each alarm signal in the order of occurrence (occurrence time) and outputs it as alarm information. To do. This alarm information is displayed on a CRT, a printer or the like, which is a display means, as needed or after the generation of all alarm signals.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. It should be noted that the same components as those of the above-described conventional technique are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in the alarm system configuration diagram of FIG. 1, the alarm control device 6 installed in the control room has a plurality of alarm signals 1a, 1
1n is input, and an alarm display signal 3 for turning on the alarm indicators 8a, 8b, ... 8n corresponding to the alarm signals 1a, 1b, ... 1n installed in the monitoring control device 7
a, 3b, ... 3n are processed and output.

Further, an OR logic circuit 9 and an all counter display 10 are provided to count the inputs of the alarm signals 1a, 1b, ... 1n and display them on the all counter display 10.
The count signal 11 is output to the monitor control device 7. .. 8n corresponding to the alarm signals 1a, 1b, ... 1n are arranged in an array. The alarm indicators 8a, 8b ,. 12n are built-in, and the alarm display signals 3a, 3b, ... 3 output from the alarm control device 6 are included.
n and the count signal 11 are input.

FIG. 2 is a front view of the alarm indicator, and alarm indicators 8a, 8b, ... 8n are the alarm indicators 5a, 5b ,.
Similarly to n, the name of the corresponding alarm is written on each surface, and the alarm display signals 3a, 3b, ... Also, each alarm indicator 8a, 8b, ... 8
The count signal 11 from the alarm control device 6 is shown at the upper left of n.
8n for displaying the count values corresponding to the alarm displays 8a, 8b, ... 8n, respectively.
Is built in.

The logic circuit diagram of FIG. 3 shows the side surfaces of the alarm display 8a and the counter display 12a and the count display logic circuit. The alarm display signal 3a from the alarm control device 6 is supplied to the self-holding circuit 13a. Is input to the AND logic circuit 14 and is further output to the alarm indicator 8a.

The AND logic circuit 14 has the count signal 11
Is also input, and when the logical condition in the AND logic circuit 14 is satisfied, the count display signal 15 is output to the counter display 12a. The holding signal 16 output from the self-holding circuit 13 to the AND logic circuit 14 is self-held by the self-holding circuit 13 and released by a separate reset signal 17. Further, the alarm display 8a receives the alarm display signal 3a and the light emitting portion 18a emits light to illuminate the alarm name in the display window 19a, and the counter display 12a inputs the count display signal 15 and displays the count value. Is configured.

Next, the operation of the above configuration will be described. In FIG. 1, when the alarm signal 1a is generated for the first time by detecting an abnormality at the site in the plant, the alarm signal 1a is input to the alarm control device 6. The OR logic circuit 9 is turned on by the alarm signal 1a, outputs the count signal 11, and the all counter display 10 displays "1".

Next, when the alarm signal 1b generated after a certain time delay from the alarm signal 1a is input to the alarm control device 6, the OR logic circuit 6 is similarly turned on and the count signal is displayed on the all counter display 10. Output 11 The count signal 11 is counted and the total counter display 10 displays "2".

In this way, the count value of all counter indicators 10 of the alarm control device 6 increases every time the alarm signals 1a, 1b, ... 1n are generated, and the alarm signals 1a, 1b ,.
The number of occurrences of is displayed. In addition, in order to reset the count value displayed on the all-counter display device 10, a reset signal 20 is separately input.

On the other hand, the alarm display signal 3a for displaying the alarm signal 1a input to the alarm control device 6 on the alarm display device 8a corresponding to the alarm signal 1a installed in the monitoring control device 7 in the alarm control device 6. And is output to the monitoring control device 7 together with the count signal 11.

As for the alarm signal 1b, the alarm display signal 3b for turning on the alarm display 8b and the count signal 11 are output to the supervisory control device 7 with a delay of the time of occurrence.
Similarly, according to the input of the warning signal 1n, the warning signal 1n
Alarm display signal 3n and count signal that match the occurrence location of
11 is output.

The alarm display signals 3a, 3b, ... 3n and the count signal 11 input to the monitor control device 7 correspond to the alarm display signals 3a, 3b, ... 3n shown in FIGS. 2 and 3, respectively. , 8b, ... 8n light emitting parts 18a, 18b ...
18n (18b ... 18n are not shown) are turned on to illuminate and display the alarm names of the respective display windows 19a, 19b ... 19n (19b ... 19n are not shown), and each counter display 12
12n indicate the number of occurrences of the alarm signals 1a, 1b, ... 1n as "1", "2" ... "n", respectively.

That is, as shown in FIG. 3, the alarm signal 1a generated at the site for the first time is processed by the alarm control device 6 into the alarm display signal 3a and the count signal 11, and the monitoring control device 7
Is output to the counter display unit 10 and the count display of "1" is displayed on the entire counter display unit 10. In the monitor control device 7, the alarm display signal 3
"a" is input to the light emitting portion 18a of the corresponding alarm display 8a, and the display window 19a of the alarm display 8a is displayed. The alarm display signal 3a is input to the self-holding circuit 13
13 is in the self-holding state, and this state is maintained until the reset signal 17 is input. Therefore, the AND logic circuit 14
The holding signal 16 is still input to.

On the other hand, the AND logic circuit 14 outputs a count signal.
11 is input, and the count display signal 15 is output to the counter display 12a according to the AND logic condition with the alarm display holding signal 16. When the count display signal 15 is input to the counter display 12a, the counter display 12a becomes "1".
Is displayed. The operator is alerted by the above "1" display on all counter displays 10, the name display on the display window 19a of the alarm display 8a, and the "1" display on the counter display 12a at the same location as the alarm display 8a. It can be confirmed that the alarm signal 1a is generated with only one signal.

Next, when the alarm signal 1b is also generated with a certain delay after the alarm signal 1a is generated as described above, the alarm display signal 3b is output from the alarm control device 6 in the same manner as the alarm signal 1a. The alarm display signal 3b is input to the alarm display 8b, and the display window 19b (not shown) of the alarm name corresponding to the alarm signal 1b is turned on. At the same time, a count signal is input to the counter display 12b of the alarm display 8b and "1" is displayed.

At this time, the count signal 11 is input again from the OR logic circuit 9 shown in FIG. 1 to the all counter display 10 and the AND logic circuit 14 of the alarm display 8a shown in FIG. The count display of the vessel 10 is "2". Further, since the count display signal 15 has already been input from the AND logic circuit 14 to the counter display 12a due to the generation of the alarm signal 1a, the count display signal 15
Is again input to the counter display 12a, and the counter display 12a displays "2".

As described above, the new alarm signal 1
Each time n occurs, a count signal 11 is newly generated, and the alarm indicators 8a, 8b, ... Turned on by the alarm signal generated before the generation of the new alarm signal 1n, the counter indicators 12a, 12b, ... The count value displayed on the 12n will be incremented by "1". Therefore, by knowing the count values on the large number of counter displays 12a, 12b, ... 12n, the alarm generation order can be determined. Further, all count values of the alarm signals 1a, 1b, ... 1n generated as a whole are displayed on the all counter display 10 installed in the alarm control device 6.

FIG. 4 is a block diagram of an alarm system according to another embodiment of the present invention, in which the alarm control device 6 and a CRT as a display means are shown.
21 a, a monitor control device 22, a count signal 11 from the alarm control device 6 and a total count signal 23 from the total count display 10, and an alarm display 8 of the monitor control device 22.
24n from alarms a, 8b, ... 8n are input, these alarm information are processed in the order of occurrence, and the CRT 21a of the monitor controller 22 and the CRT installed outside are processed.
21b, and a process computer 27 that outputs alarm information 26 to display means such as the printer 25.

The alarm control device 6 and the supervisory control device 22 have substantially the same main configuration as the alarm control device 6 and the supervisory control device 7 in the above-mentioned embodiment, respectively. You may divert part of the calculator. With the operation of the above configuration, the alarm control device 6 and the monitor control device 22 are almost the same as the alarm control device 6 and the monitor control device 7.

Further, as shown in FIG. 4, a process computer
In 27, the total count signal 23 and the count signal 11 from all the counter indicators 10 of the alarm control device 6 which input the alarm signals 1a, 1b, ... 1n due to the occurrence of an abnormality are input, and further installed in the monitoring control device 22. Alarm display 8a, 8b, ...
From 8n, the name (content) of the alarm that lights each and alarm information 24a, 24b, ... 24n such as count values of the counter displays 12a, 12b ,.

In the process computer 27, these input signals are the count values of the total count signal 23 and the alarm information 24.
The alarms generated by comparing the count values included in a, 24b, ..., 24n are rearranged and processed in the order of occurrence, and the result is used as alarm information 26 as CRTs 21a, 21b.
Also, since it is displayed on the printer 25 or the like, the operator can easily monitor and confirm.

The display and monitoring of the alarm information 26 by the CRTs 21a and 21b, the printer 25, etc. can be output and recorded at any time or after the alarm is issued as needed. Also, every time the alarm signals 1a, 1b, ... 1n are generated from all counter indicators 10 installed in the alarm control device 6, the total count signal 23 is input to the process computer 26, and the time at which each count value is generated is divided. It is also possible to display the generation order and generation time of the alarm signals 1a, 1b, ... 1n generated by being turned on as alarm information 26 on the CRTs 21a, 21b.

In the alarm device of the present invention as described above, the alarm indicators 8a, 8b, ... Installed in the monitoring control devices 7, 22.
Regarding the count values of the 8n counter indicators 12a, 12b, ... 12n, referring to the count values of all the counter indicators 10 installed in the alarm control device 6, the counter indicators 12a, 12b ,.
By comparing the count values of 12b, ..., 12n with each other, the lighting order of the alarm indicators 8a, 8b ,.

That is, each counter display 12a, 12b,
Of the 12n count values, the same number as the count value of all the counter displays 10 is the first alarm that has been lit, and 2 is less than the count value of the counter display 8a by "1".
You can see that it is the second alarm. Therefore, the alarm generation order (lighting order) can be easily confirmed by monitoring the alarm device by the magnitude of the count value of the counter displays 12a, 12b, ... 12n.

[0035]

As described above, according to the present invention, when many alarms are generated in a short time and the window of the alarm display in the control room is turned on, the count value corresponding to the number of generated alarms is displayed. By providing a counter display for displaying and increasing the count value (the number of displays) of the counter display that lights up each time an alarm occurs, the operator can easily monitor the monitoring control device. It is possible to understand the alarm content and the order of occurrence.

Further, by inputting alarm information corresponding to the alarm generated in the computer, alarm names and time of occurrence arranged in the order of occurrence can be displayed on a display means such as a CRT and the burden required for investigating a plant abnormality can be reduced. effective.

[Brief description of drawings]

FIG. 1 is a block diagram of an alarm system according to an embodiment of the present invention.

FIG. 2 is a front view of an alarm indicator according to an embodiment of the present invention.

FIG. 3 is a logic circuit diagram of an alarm indicator and a count display according to one embodiment of the present invention.

FIG. 4 is a block diagram of an alarm system according to another embodiment of the present invention.

FIG. 5 is an alarm system configuration diagram of a conventional alarm device.

[Explanation of symbols]

1a, 1b, ... 1n ... Alarm signal, 3a, 3b, ... 3n ...
Alarm display signal, 6 ... Alarm control device, 7, 22 ... Monitoring control device, 8a, 8b, ... 8n ... Alarm display device, 9 ... OR logic circuit, 10 ... All counter display device, 11 ... Count signal, 12a,
12b, ... 12n ... Counter display, 13 ... Self-holding circuit, 14
... AND logic circuit, 15 ... Count display signal, 16 ... Hold signal, 17, 20 ... Reset signal, 18a ... Light emitting part, 19a ... Display window, 21a, 21b ... CRT, 23 ... Total count signal, 24a,
24b, ... 24n ... Alarm information signal, 25 ... Printer, 26 ... Alarm information, 27 ... Process computer.

Claims (2)

[Claims] 1. An alarm control device provided with an all-counter indicator for inputting a plurality of alarm signals generated at various places to perform alarm display processing and outputting an alarm display signal and for counting and displaying the alarm signals. , A plurality of alarm displays for providing an alarm display corresponding to each alarm display signal by providing a counter display for inputting a plurality of alarm display signals and a count signal output from the alarm control device and performing a display corresponding to the count signal An alarm device comprising a monitoring control device provided with a container. 2. An alarm control device provided with an all-counter indicator for inputting a plurality of alarm signals generated at various places to perform alarm display processing and outputting an alarm display signal, and for counting and displaying the alarm signals. , A plurality of alarm displays for providing an alarm display corresponding to each alarm display signal by providing a counter display for inputting a plurality of alarm display signals and a count signal output from the alarm control device and performing a display corresponding to the count signal And a monitoring controller provided with a device, and a computer for inputting and processing a count signal from the alarm controller and an alarm information signal such as a count display signal and an alarm display signal from the monitor controller to output processed alarm information. And an alarming device comprising a display means for displaying alarm information from the computer.